Effect of fabrication factors on performance of screen-printed/laser micromachined electrochemical nanovials

J. Christopher Ball, Janet K. Lumpp, Sylvia Daunert, Leonidas G. Bachas

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Electrochemical vials with volumes of 2.6 nL and embedded working and reference electrodes have been fabricated by coupling screenprinting (thick-film) technology with excimer laser micromachining. The processing parameters were varied to determine their effect On the resulting nanocell. The fabricated systems were analyzed by resistance measurements, surface profilometry, and SEM. The performance of the electrochemical nanovials was evaluated by cyclic voltammetry using hexaamineruthenium(III) chloride. The current limits of thick-film fabrication were approached in creating very small nanocells using the methods described. The functioning small volume electrochemical cells gave voltammograms that were either peak-shaped or sigmoidal. The shape of the voltammogram corresponded to the electrochemical surface area determined by chronoamperometry.

Original languageEnglish (US)
Pages (from-to)685-690
Number of pages6
JournalElectroanalysis
Volume12
Issue number9
DOIs
StatePublished - Dec 12 2000
Externally publishedYes

Keywords

  • Excimer laser micromachining
  • Hexaamineruthenium(III) chloride
  • Microfabricated analytical device
  • Screen-printing
  • Small volume analysis

ASJC Scopus subject areas

  • Analytical Chemistry

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